Portable transformer and hoist



Sept. 27 1932. c, M HORNE 1,879,848

PORTABLE TRANSFORMER AND HOIST Filed July 22, 1930 2 Sheets-Sheet 1 2aFT 0 22 Q Z l0 7 I? H Inventor All 2 omey Patented Sept. 27, 1932cnnrs'rornna M. Home, or ARLINGTON, MASSACHUSETTS :ZPORTAIBLETRANSFORMER AND HOI ST Application filed July 22,

This invention relates broadly to hoists, and the primary object of thisinvention is to provide a portable hoist tofacilitatetheposition of a.transformer on telephone cable 5 wires or posts usually provided for thewires. .A still further object of the invention is to provide a hoist ofthe above mentioned character, which can be readily carried from placeto place, conveniently secured to the 1 cross arm of the telephone post,and further whereby the transformer may be raised into proper positionon the cross arms of the post without coming into contact with thetelephone cables. 15 Other objects and advantages of the invention willbecome apparent during a study of the following description, taken inconnection with the accompanying drawings, where- 1n:

Figure 1 is a perspective View of the improved hoist, the same beingshown in position on a telegraph post for more clearly illustrating themanner of utilizing the same for H raising the transformer to position,

25 Figure 2 is a front elevational View showing the transformer inposition,

Figure 8 is a side elevational view of the hoist, certain parts beingshown in section.

WVith reference more in detail to the drawings, it will be seen thatreference character 5 designates a somewhat conventional type oftelegraph post having upper and lower pairs of cross arms 6 and 7respectively, together with the additional lowermost cross arm 8 whichextends at right angles to the upper and lower cross arms 6 and 7. Theupper and lower cross arms 6 and 7 as Well as the cross arms 8 have theusual cable wire 9 passed therethrough in the usual manner.

The upper and lower pairs of arms 6 and 7 are braced with respect to thepost 5 through the medium of suitable braces 10 and the sin gle arm 8 isbraced with respect to the post 5 through the medium of braces 11.

The improved transformer hoist comprises an elongated rod 12 to whichare secured at the upper ends thereof upper and lower arms 18 and 14respectively. The arms 13 and 14: are each swingably secured to theupper end of the rod 12 through the medium of eye bolts 1930. Serial NO.469,754.

15 arranged in longitudinal alinement. The purpose of the arms will behereinafter made manifest.

Secured toothelower end of the .rod 12 is an angular shaped bracket16having an end portion716 extending in spaced parallelism to the postor rod 12 for receiving therebetween one of the lower arms 9 of thetelegraph post. Thebracket 16also includes a horizontally disposedportion having a suitable penetrating prong-17 formed inte grallytherewith for biting engagement with the said'one arm of the arm 9 whenthe rod 12 isin position for hoisting thetransformer as willbe'hereinafter made manifest.

Adjustable relative to the rod 12- is a second attaching and anchoringbracket which includes a sleeve 18 slidable on, therod 12 and has an L-shaped arm 19 projecting therefroml On the vertical end ofthe arm 19there is threaded a wing screw 20' the free end of which is pointed-andinwardly from said" free end the shank ofthescrew is suitably providedwith auwasher-21. From a study of Figure 1, it will be seen that whenthe bracket 16 engages the said one of the arms 9 the adjustable bracketengages one of the upper arms 6. and the screw 20 is threaded inwardlyso that its pointed end is penetrating the said one'of the upper arms 6thus securely retaining the rod 12- in position on the telegraph post.

The invention further comprehends a suitable hoisting tackle designatedgenerally by the reference character T. The hoisting tackle T comprisesan upper block '22 having a pair of pulleys 23 mounted. therein. "Thereisalso provided a lower block 24 having a pair of pulleys 25 mountedtherein. Trained over the pulleys 23 and 25 is acable 26] one end ofwhich is secured to the upper block 22 as at 27 and the free end of thecable extends downwardly to be trained over a suitable pulley 28arrangedin a hanger 29 suitably secured to the'lower end of the post 5by an eye bolt 30. V i 7 The upper block 22 has on the upper end thereofa hook 31 and it is adapted to pass through registering openings 13. and14L formed in the free ends of the arms 13 and 14. In this connection itwill be noted that the free end of the lower arm 14 is bifurcated forreceiving in the furcation the free apertured end of the upper arm 13 sothat the openings 13 and 14 are brought into registry one with the otherand the hook 31 passed through the openings thus securing the, free endsof the arms 13 and 14 in interconnected engagement and at the same timeutilizing the arms to provide a swingable support for the hoistingtackle. g The lower block 24 is also equipped with a hook 33 adapted toengage aflexible mem ber 34 such as a cord or the like which is loopedand engages lugs 35 on opposite sides of a transformer 36. Thetransformer 36 is of conventional construction and a detail descriptionthereof is believed unnecessary.

The operation of the device may be briefly explained as follows. Tohoist the transformer 36 into proper positionon the telegraph pole, orinto that position shown in Figure 2, the rod 12 is supported in avertical position on the cross arms of the post that is, with thebracket 16 engaging one of the lower pair of cross arms 7, and theretaining bracket that is slidable on the rod 12 engaging one of theupper pairs of the cross arm 6 thus rigidly securing the rod 12 inposition. The hook 31 engaging the openings 13' and 14 inthe arms 13 and14 retains the arms in the angular relation with respect to one anotherand with respect to the rod 12 as clearly suggested in Figure 1 thusproviding a swingable suspension means for the hoisting tackle.

The hook 33 engages the flexible member 34 which is carried by thetransformer 36 for securing the transformer to the tackle. Obviously byexerting a pull on the free end of the cable 26 the transformer 36 willbe raised in a manner apparent. As the transformer moves upwardly, itwill be noted that, as shown in Figure 1, the lower arm 14 is parallelto the cables 9 which will tend to keep the transformer at a properdistance from both the post 5 and cross arm.

lVhen the transformer has been drawn up the proper distance it is thenswung into final position by merely exerting a sufficient pull on thecable to turn the arms 13 and 14 to assume the position shown in Figure2 that is with the lower arm 14 at right angles to the cable 9 afterwhich the tranformer is lowered sufiiciently so that the hooks 37carried by the transformer engage over one of the upper arms 36 on thepost 5 to assume the position shown in Figure 2.

It is thought that from the foregoing description taken in connectionwith the accompanying drawings, a clear understanding of the operationconstruction, utility and advantages ofan invention of this charactermay be had by those skilled in the art without a more detaileddescription thereof.

Even though I have herein shown and described the preferred embodimentof my invention, it is to be understood that the same is susceptible tochanges fully comprehended by the spirit of the invention as hereindescribed, and the scope of the appended claim.

Having thus described my invention, what Iclaim as new is:

In an apparatus of the character described, the combination of a mast,means to attach said mast to a pair of cross-arms arranged one above theother, said mast including a portion to extend a considerable distanceabove the upper cross-arm, and two arms mounted one above the other onthe upper end portion of'said mast to swing both vertically andhorizontally with reference to the mast when the mast is in its uprightposition, said swinging arms having outer end portions constructed to besecured directly to each other, and means carried by said two arms tosup: port a hoist mechanism.

In testimony whereof I affix my signature.

CHRISTOPHER M. HORNE.

